Using a signature field for drawing
I would like to create something like a signature field, that allows you to draw on the screen and then save what has been drawn. I could just use the signature field and draw in it but I would like to already have some content added and then the used would finish the content by hand drawing. So image a clock with only one hand drawn at 6 and some text (see the attached image). Then the user needs to draw lines at appropriate hours. Say one at 9 and one at 12 as needed. And then FM would capture this drawing like it does a signature.
Is this even possible?